AS number details

AS19977

Mayer Brown LLP  ·  mayerbrown.com

United States

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AS19977 – Mayer Brown LLP

Field Value
Country United States
Website mayerbrown.com
Hosted domains 6
Number of IPv4 2,048
Number of IPv6 0
ASN type Business
Registry arin
Allocated 9 years ago on Aug 02, 2016
Updated 9 years ago on Aug 02, 2016

IP Ranges

Netblock Company Num of IPs
143.58.0.0/22 Mayer Brown LLP 1,024
143.58.4.0/22 Mayer Brown LLP 1,024
143.58.0.0/24 Mayer Brown LLP 256
143.58.1.0/24 Mayer Brown LLP 256
143.58.2.0/24 Mayer Brown LLP 256
143.58.3.0/24 Mayer Brown LLP 256
143.58.4.0/24 Mayer Brown LLP 256
143.58.5.0/24 Mayer Brown LLP 256
143.58.6.0/24 Mayer Brown LLP 256
143.58.7.0/24 Mayer Brown LLP 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19977
                                                OrgID:          AS19977
                                                ASName:         AS19977
                                                ASNumber:       AS19977
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 6 domain names hosted across 6 IP addresses on this ASN.

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IP Address Domain Domains on this IP
143.58.5.109 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.249 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.5.247 ██████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

5 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
143.58.0.129 AS19977 Mayer Brown LLP 1.59ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.61ms from Chicago, US
143.58.1.199 AS19977 Mayer Brown LLP 2.17ms from Chicago, US
143.58.5.27 AS19977 Mayer Brown LLP 1.17ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.29ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
71.150.184.137 AS7018 AT&T Enterprises, LLC 14.86ms from Atlanta, US
120.46.192.249 AS55990 Huawei Cloud Service data center 3.90ms from Beijing, CN
115.246.227.169 AS55836 Reliance Jio Infocomm Limited 2.88ms from Chennai, IN
122.185.255.185 AS9498 BHARTI Airtel Ltd. 1.62ms from Delhi, IN
78.178.45.201 AS9121 Turk Telekomunikasyon Anonim Sirketi 10.09ms from Istanbul, TR
176.196.136.89 AS39927 E-Light-Telecom Ltd. 1.58ms from Kemerovo, RU
137.27.241.217 AS20115 Charter Communications LLC 5.93ms from Los Angeles, US
88.10.193.201 AS3352 TELEFONICA DE ESPANA S.A.U. 8.44ms from Madrid, ES
65.113.177.57 AS209 CenturyLink Communications, LLC 8.16ms from Miami, US
108.54.123.217 AS701 Verizon Business 2.77ms from New York City, US
60.122.162.153 AS17676 SoftBank Corp. 4.18ms from Osaka, JP
27.216.75.169 AS4837 CHINA UNICOM China169 Backbone 8.97ms from Qingdao, CN
167.82.3.185 AS54113 Fastly, Inc. 0.11ms from San Jose, US
181.36.96.9 AS28118 ALTICE DOMINICANA S.A. 1.55ms from Santo Domingo, DO
210.181.205.121 AS7557 Korea Trade Network 2.76ms from Seoul, KR
61.169.172.185 AS4812 China Telecom (Group) 3.22ms from Shanghai, CN
207.120.7.153 AS3356 Level 3 Parent, LLC 4.53ms from Skanderborg, DK
121.22.254.25 AS4837 CHINA UNICOM China169 Backbone 9.12ms from Tianjin, CN
194.88.245.185 AS41508 ZINET.NET.PL Sp. z.o.o. 1.81ms from Warsaw, PL
23.127.42.185 AS7018 AT&T Enterprises, LLC 9.96ms from Atlanta, US
182.76.140.89 AS9498 BHARTI Airtel Ltd. 0.55ms from Bengaluru, IN
18.1.95.233 AS3 Massachusetts Institute of Technology 0.61ms from Boston, US
105.78.1.233 AS36884 Wana Corporate 10.93ms from Casablanca, MA
98.103.127.89 AS10796 Charter Communications Inc 5.58ms from Columbus, US
88.79.186.9 AS3209 Vodafone GmbH 2.00ms from Duesseldorf, DE

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f4 -m8 143.58.7.128
traceroute to 143.58.7.128 (143.58.7.128): 8 hops max, 52 byte packets
4 [AS3356] 4.69.203.230 116.751 ms
5 [AS3356] 4.53.98.118 116.628 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Copenhagen, DK
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19977 at robtex.

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